一 工程概述：某集團主營業務涉及飼料生產、食品加工、種畜禽繁育等產業。集團年飼料生產能力1100多萬噸，日宰殺家禽能力230多萬只，年可生產畜禽種苗1億多只。屠宰污水主要來自于圈欄沖洗、淋洗、屠宰及其它廠房地坪沖洗、燙毛、剖解、副食加工、洗油等工序所產生的污水，

二  水質特點

1、屠宰污水一般呈紅褐色，有難聞的腥臭味,其中含有大量的血污、油脂質、毛、肉屑、骨屑、內臟雜物、未消化的食物、糞便等污物，固體懸浮物含量高。

2、屠宰污水有機物含量高，可生化性好其中高濃度有機質不易降解，處理難度較大，宰污水中的營養物主要是氮、磷，其中氮主要以有機物或銨鹽形式存在，而磷主要以磷酸鹽的形式存在。

二 處理工藝

1、一級處理：排放的廢水先后流經粗細兩道格柵，主要去除較大懸浮物和漂浮物，防止污水提升泵等機械設備堵塞。然后流入隔油沉淀池，廢水中含有泥沙等，這些可通過自然沉淀去除，沉淀的泥沙定期用污泥泵打入污泥濃縮罐。油脂則漂浮在水面，可以人工撈出回收處理。由于其廢水水質水量波動較大，以確保后續處理效果和運行穩定性，在處理工藝流程中設置調節池，以均化水質水量。保證系統平穩運行。還可以通過調節池均化其本身的酸、堿度，以使廢水的pH值滿足后續處理工藝的要求。廢水中含有的血污、油脂、油塊等，通過混凝氣浮得到有效的去除。

2、二級處理：對于屠宰廢水中難降解、濃度較高的COD_Cr、BOD₅，預處理過程中不能完全去除，故二級處理采用生化處理，本設計采用水解酸化-好氧生物處理技術。水解酸化池主要目的將大分子有機物分解成小分子有機物，以便在好氧過程中進一步得到去除。

3、三級處理：好氧處理后的出水，溢流到沉淀池中，沉淀后上清水進入消毒池，沉淀池中的污泥定期用泥漿泵打入污泥濃縮罐中。

  工藝流程

  來自屠宰場的污水經格柵（網）去除污水中的毛、皮、浮渣和大顆粒懸浮物后自流入隔油池，去除大部分油脂和泥砂后進入調節池，經調節池調節水質水量后，并保證后續處理設施的正常運行。經過調節池的水經泵提升至平流式氣浮沉淀一體機。先期去除水中懸浮物（ss），去除率達90%以上，出水進入一體化污水處理設備，一體化污水處理設備由（水解酸化池、二級接觸氧化池、沉淀池組成），污水在水解酸化池

進行酸化處理，通過厭氧菌將大分子有機物轉化成低分子有機物；經水解酸化池流入接觸氧化池進行生化反應后再進入沉淀池，出水經過濾消毒達標排放

濟寧天通是一家水處理設備生產和銷售集一體的公司，公司擁有高尖端的技術人才，擁有高素質的工作團隊，可以及時地為客戶提供完善的售后服務。我公司主要產品：水處理設備，污水處理設備、廢水處理設備、工業污水設備、農業廢水設備、雨水凈水設備、醫院污水設備、鋼廠廢水設備、屠宰場廢水設備、食品廠廢水處理設備等多種設備，可根據要求專業定制水處理設備。

Abstract: the main business of a group is related to feed production, food processing and breeding of livestock and poultry. The annual feed production capacity of the group is over 11 million tons, and the daily slaughter of poultry is more than 2.3 million, and the annual production of livestock and poultry can be more than 100 million. The slaughter of sewage is mainly from the effluent of flushing, washing, slaughtering and other plant floor rinsing, ironing, cuting, cutting, processing and washing of oil.
Two water quality characteristics
1, slaughter wastewater generally is reddish brown, has the unpleasant stench, which contains a lot of blood, fat mass, wool, meat scraps, skeletal, visceral sundry, undigested food, fecal sewage, such as high content of suspended solids.
2, slaughter wastewater organic matter content is high, can good biochemical with high concentration of organic matter is not easy to degrade, processing is difficult, the nutrients in slaughter wastewater is mainly nitrogen, phosphorus, nitrogen mainly exists in the form of organic matter or ammonium salt, and phosphorus mainly exists in the form of phosphate.
Two-process process
1. Primary treatment: the effluent effluent flows through thick and thin grille, mainly removing the larger suspension and floatation, preventing the blockage of mechanical equipment such as sewage pumping. Then flow into the grease trap, the waste water contains silt, etc. These can be removed by natural precipitation, and the sediment of sediment can be pumped into the sludge concentrator regularly. Oil floats on the surface of the water and can be retrieved and disposed of. Due to the high fluctuation of water quality of wastewater, it is needed to ensure the effect and operation stability of the subsequent treatment, and to set up the adjustment pool in the process flow to homogenize the water quality. Ensure the smooth operation of the system. The acid and alkalinity of the water can also be used to make the pH value of wastewater meet the requirements of the subsequent treatment process. Wastewater contains blood, grease, oil, etc., which can be effectively removed by coagulation.
2, secondary processing: to refractory in slaughter wastewater and high concentration of CODCr, BOD5, cannot completely remove pretreatment process, so the secondary treatment using biochemical treatment, the design adopts hydrolysis acidification - aerobic biological treatment technology. The main purpose of hydrolysis acidification pool is to decompose macromolecular organic matter into small molecule organics so as to be further removed during aerobic process.
3. Three-level treatment: after the aerobic treatment, the water is poured into the sedimentation tank. After the precipitation, the sludge is deposited into the disinfectant pool. The sludge in the sedimentation tank regularly pumps into the sludge tank with mud pump.
The process flow
From slaughterhouse wastewater by grid (mesh), remove the wool and leather in the sewage, scum and since into the separation tank, after the big particles suspended after removing most of the oil sand and mud into the basin, after regulating pool water, and ensure the normal operation of the subsequent treatment facilities. The water through the regulating pool is pumped up to the flat flow type air floating precipitator. Early removal of suspended solids (ss) in water, the removal rate of more than 90%, the water into the integrated wastewater treatment equipment, the integration of sewage treatment equipment by (hydrolysis acidification pool, secondary contact oxidation pool, sedimentation tank), sewage in the hydrolysis acidification pool
The acidification treatment is used to convert large molecular organic matter into low molecular organic matter through anaerobic bacteria. After the hydrolyzed acidification pond was released into the contact oxidation pond for biochemical reaction, then it entered the sedimentation tank and the water was filtered and disinfected to meet the standard discharge
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